agentconfig.ing
Void vs WindsurfUpdated 2026-03-16

SUMMARY

Void (IDE) uses markdown configuration while Windsurf (IDE) uses markdown. They differ on 4 of 11 compared features. Both tools provide AI-assisted development but take different approaches to project configuration.

FEATURE COMPARISON

FeatureVoidWindsurf
Config formatmarkdownmarkdown
Hierarchy support✗✓
Global config✗✓
Project config✓✓
Subdirectory scoping✗✓
File inclusion / imports✗✗
Ignore file✗.codeiumignore
IDE integration✓✓
Schema / structureFree-form (Markdown)Free-form (Markdown)
Git committed✓✓
EncodingUTF-8UTF-8

FILE MAPPING

PurposeVoidWindsurf
Project rules.void/rules/*.md.windsurf/rules/*.md
Project rules.void/rulesAGENTS.md

SIDE-BY-SIDE CODE SAMPLES

Void
.void/rules/*.md
markdown
---
description: Python backend conventions
globs: "app/**/*.py"
auto_apply: true
---

# Backend Rules

## Stack
- Python 3.12 with FastAPI
- SQLAlchemy 2.0 with async sessions
- Alembic for migrations
- pytest for testing

## Conventions
- Use type hints on all function signatures
- Async endpoints by default
- Pydantic v2 models for request/response schemas
- Repository pattern for database access

## File Structure
- app/api/routes/ — API endpoints
- app/models/ — SQLAlchemy models
- app/schemas/ — Pydantic schemas
- app/services/ — Business logic
Windsurf
.windsurf/rules/*.md
markdown
---
trigger: glob
globs: "**/*.test.ts"
---

# Testing Conventions

- Use Vitest as the test runner
- Colocate test files next to source files
- Use describe blocks organized by function/component name
- Prefer userEvent over fireEvent in component tests
- Mock external services; never hit real APIs in unit tests

KEY DIFFERENCES

1. Hierarchy support

Void: Not supported. Windsurf: Supported.

2. Global config

Void: Not supported. Windsurf: Supported.

3. Subdirectory scoping

Void: Not supported. Windsurf: Supported.

4. Ignore file

Void: Not supported. Windsurf: .codeiumignore.

WHICH SHOULD I USE?

Recommendation

Choose based on your IDE/CLI preference. If you use Void, configure .void/rules/*.md. If you use Windsurf, configure .windsurfrules. Many projects include config files for multiple tools so each team member can use their preferred editor.

PORTABILITY TIP

sync-instructions.sh
bash
# Maintain a single source of truth:
cp AI-INSTRUCTIONS.md CLAUDE.md
cp AI-INSTRUCTIONS.md .cursorrules
cp AI-INSTRUCTIONS.md AGENTS.md

SEE ALSO

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